1 GM 2018 Grade 5 Geography Term 2 Contents High places and low places on a physical map in South Africa ........................................... 2 Coastal plains, escarpment and plateaus ............................................................................ 2 Activity 1 ....................................................................................................................... 3 The location of the Highveld, Lowveld, Great Karoo, ........................................................... 3 Little Karoo, Kalahari Basin and Namaqualand ................................................................... 3 Activity 2 ....................................................................................................................... 4 Physical Features ................................................................................................................ 5 From the mountains to the coast, mountains and mountain ranges ................................. 5 Activity 3 ....................................................................................................................... 5 Valleys and hills ............................................................................................................... 6 Activity 4 ....................................................................................................................... 6 Rivers and waterfalls ........................................................................................................ 7 Capes and bays ............................................................................................................... 7 Information about some features in the provinces of South Africa ....................................... 9 How places got their names ............................................................................................. 9 Where rivers begin and end ............................................................................................. 9 River systems – tributaries and catchment areas........................................................... 10 The main rivers of South Africa ...................................................................................... 10 Activity 5 ..................................................................................................................... 10 How the physical landscape in South Africa affects people’s lifestyles.............................. 11 How human activities change landscapes ......................................................................... 11 How a dam changes the physical environment.................................................................. 12 How roads change the physical environment .................................................................... 12
Transcript
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GM 2018
Grade 5 Geography Term 2
Contents High places and low places on a physical map in South Africa ........................................... 2
Coastal plains, escarpment and plateaus ............................................................................ 2
How the physical landscape in South Africa affects people’s lifestyles .............................. 11
How human activities change landscapes ......................................................................... 11
How a dam changes the physical environment .................................................................. 12
How roads change the physical environment .................................................................... 12
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High places and low places on a physical map in South Africa Land, on a map, is shown in a different colour to the sea. The sea is always shown in the
colour blue. On a physical map, different heights of land above sea level are also shown
in different colours. Green usually shows the lowest land and white or purple shows the
highest land. The information about the height is given in the map key.
Land is measured in meters above sea level, with sea level at 0 meters. High land is often
further away from the sea. The highest part of South Africa is in the uKhahlamba –
Drakensberg Mountains. This area is over 3300 meters above sea level. Table Mountain
in Cape Town is 1087 meters above sea level.
Coastal plains, escarpment and plateaus A coastal plain is a flat or sloping area of land that is between the sea on one side and a
mountain on the other. Coastal plains are found in KwaZulu–Natal, the Western Cape and
Eastern Cape.
A plateau is a large, flat area high above the level of the sea. Plateaus are found in the
inland provinces of Gauteng, North West, The Free State and Mpumalanga in South
Africa.
Table Mountain
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An escarpment is a steep mountain that is found between low lying land and high lying
land. The uKhahlamba Drakensberg Mountains form part of the escarpment in South
Africa. The uKhahlamba Drakensberg Mountains are between the low lying coastal plain
of KwaZulu – Natal and the plateaus of the Free State, Mpumalanga and Gauteng.
Activity 1 1. Why are coastal plains not found in the Gauteng province?
2. Are escarpments good areas for farming? Give a reason for your answer.
3. Will coastal plains be good areas for faming? Give a reason for your answer.
4. Draw a picture of a landscape showing a coastal plain, a plateau and an escarpment.
The location of the Highveld, Lowveld, Great Karoo, Little Karoo, Kalahari Basin and Namaqualand The Highveld is a high lying area over 1600 meters high. It is found mostly in the Free
State, Gauteng, Mpumalanga and the Eastern part of the North West Province.
A Plateau
An escarpment
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The Lowveld is a lower lying area only approximately 800m above sea level high. It is
found mostly in Mpumalanga and the Limpopo Province on the eastern and northern side
of the Highveld.
The Great and Little Karoo are large valleys found between mountain ranges in the
Western Cape. The Great Karoo is much bigger in size compared to the little Karoo; this
is why one is called ‘Great” and the other ‘Little’.
The Kalahari basin is a low lying area found in the centre of Southern Africa. It is a very
dry area north of the Northern Cape, Namibia and Botswana. The Kalahari Desert is
found in this basin.
Namaqualand is well known for the colourful flowers that grow after the winter rainfall.
These are found in Namibia, next to the cold Atlantic Ocean and along the west coast of
the Northern Province.
Activity 2 Using the physical map that will be given to you by your teacher, answer the following
questions.
1. In which province is the Highveld? Is the Highveld plateau over 2000m above sea
level?
2. Is the Kalahari basin only found in South Africa?
3. What is the name of the plateau found in the interior of the map?
Namaqualand daisies
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4. What are the names of the three mountains that form part of the escarpment?
5. Name the mountain that is found between the Little Karoo and the Great Karoo.
6. Name the ocean close to Namaqualand?
7. Complete the table below by matching the correct location to each physical feature.
Physical feature Location of physical feature
a. Highveld 1. The smaller of two valleys in the Western Cape that are
found between mountain ranges.
b. Namaqualand 2. High lying plateau in the centre of South Africa
c. Little Karoo 3. Found on the eastern part of South Africa, about 800m
above sea level
d. Lowveld 4. The name of a desert
e. Kalahari 5. A large valley found between the Swartberg and
Nuweveldberg mountains
f. Great Karoo 6. Found along the west coast next to the cold Atlantic
ocean
Physical Features From the mountains to the coast, mountains and mountain ranges
A mountain is land that is much higher than the surrounding area.
The highest mountain Africa is in Lesotho. It is called Tabana Ntlenyana and is 3482m
high. Tabana Ntleyana is part of the South African escarpment in the uKhahlamba –
Drakensburg mountain range. A number of mountains that are part of the same formation
are called a mountain range.
Activity 3 Look at the photograph that will be provided by your teacher about the uKhahlamba
Drakensberg mountains and answer the questions that follow:
1. What does the letter A point to? Is it a hill or a valley?
2. Which of the letters B, C or D show the steepest valley?
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3. Why is there more water in the river at letter D?
4. What could happen to the mountain over a very long period of time?
Valleys and hills Valleys are found between hills and mountains. Valleys are usually formed by rivers. As
the water flows, it drags rocks along the bottom of the river. The rocks erode or cut into
the mountain to form valleys. Higher up the mountain, the valleys are steeper and
narrower. Lower down the valley becomes less steep and wider. The valley is very wide
and the slope is gentle at the sea or mouth of the river.
Vocabulary Erode: the breaking down of rock by moving water, wind or ice. In Geography, this means
when something like a river cuts into soil or rock, or when the sea’s waves cut into the
land.
To more water there is in a river, the more energy a river has, to make the valley bigger.
As the river flows towards the sea, it will join with other rivers and become larger. Higher
up in the mountains, the river has less water, so the valleys are smaller. Lower down, the
river has more water and the valley is wider.
Activity 4 Look at the drawing of the river landscape from the mountains to the sea, which will be
provided by the teacher, and answer the questions that follow:
1. Write down the letters A – E and write the position they show: a steep valley, a wide
valley, the source of the river, a waterfall and the mouth of the river.
2. Why do you think a river starts in the mountains?
3. What happens to the amount of water in the river as it flows to the sea?
The uKhahlamba – Drakensberg Mountains
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Rivers and waterfalls A river flows from the mountains to the sea. The place where the river starts is called its
source. This is high up in the mountains where the rainfall collects. Rivers end up flowing
into the sea. This is called the mouth of the river.
Rivers tend to flow very strongly when there is a lot of rain. Some rivers flow all the time.
These rivers are shown as blue lines on a map. Others only flow when it has rained and
then they dry up when the rainy season stops. These rivers are shown as broken blue
lines on a map.
When water flows very over a steep drop in the riverbed, it is called a waterfall. The water
falls quickly over the steep slope. Waterfalls are usually found in rivers because the river
bottom is not always flat. When there is a steep drop in the river bottom then the water will
cascade down very rapidly.
Capes and bays
Capes and bays are found along coastlines. Capes are pieces of land that stick out into
the sea. Bays are found between capes and are u-shaped. The bays are areas where the
land is soft and the sea can erode the land away more easily. Capes on the other hand
take long to erode because they have hard rock.
A waterfall
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The location of some physical features in South Africa
Province Mountains Valleys and hills
Rivers Waterfalls Capes and bays
Northern Cape Richtersveldt
Range
Orange/ Gariep
Valley
Orange/ Gariep Augrabies West Coast
Cape
Eastern Cape Escarpment
Sneeuberge
Amatola
Gamtoos valley
Langkloof valley
Sundays
Fish
Kei
Riviersonderend Algoa Bay
Cape Recife
Western Cape Cedarberg
Mountains
Table Mountain
Breede River
Valley
Berg River
Valley
Breede Berg
Olifants
Magwa Table Bay
Saldanha Bay
Cape Agulhas
Kwazulu - Natal Drakensberg
Sneeuberge
Escarpment
Valley of a
thousand hills
Tugela
Duzi
Mzimkulu
Oribi
Tugela
Richards Bay
Umzinto
Bay
Free State
Escarpment
Drakensberg
Maluti
Clarence valley Caledon
Vaal
Ash
none
Mpumulanga
Escarpment
Drakensberg
Lebombo
Loskop valley Crocodile
Olifants
Berlin
Lisbon
None
North west Pilanesberg
Magaliesberg
Pilanesberg
Crocodile
Hartz
None
Gauteng
Witwatersrand
Magaliesberg
Lonehill
Koppie
Vaal
Apies
None
Limpopo Soutpansberge
Waterberge
Limpopo
valley
Limpopo
Lephalala
None
A Bay A Cape
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Information about some features in the provinces of South Africa
How places got their names The name of a place often gives people an idea of what the place looks like or sounds like.
They are sometimes named after an important person, animal, event or plant, which was
closely linked to the culture of the people who found and named the place.
After 1994, when South Africa became a democratic country, many names were changed
to traditional names. The following two places all have are interesting because of the
names they were given:
The Augrabies Falls were named by the Khoi people. Augrabies means ‘the water that
smokes.’ This was because the waterfall causes a lot of spray that looks like smoke.
The uKhahlamba Mountains: The word uKhahlamba is a Zulu word. It means barrier of
spears. A spear is an important weapon that was used by the Zulu people who lived in the
area that is today called Kwazulu-Natal. The Dutch word for this mountain is Drakensberg,
which means ‘the mountain of the dragon.’
Where rivers begin and end You have already learnt how water gets from the sea to the land and back to the sea. The
drawing below will remind you how the water cycle works:
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A river will flow downwards from a mountain or high place to the ocean at sea level. This
downward movement is caused by the earth’s gravity. You also know that a river flows
from its source, which is in the mountains, to the river mouth at the sea.
River systems – tributaries and catchment areas When many rivers join together to form a bigger river, all these rivers together are called a
river system. The rivers that make up the large river are called tributaries. Rivers get their
water from rain falling into the river. They also get water from the land around the river
and this is called the catchment area. All rivers have their own catchment areas. When
rivers join with other rivers, the size of the catchment area gets bigger. The bigger the
catchment area, the more water there will be in a river.
The main rivers of South Africa The escarpment is the highest and longest range of mountains in South Africa. Most of
South Africa’s rivers have their source in these mountains. This means that most rivers
start in the high mountains of the escarpment. The shorter rivers in South Africa flow from
the escarpment east and south wards to the sea. Examples are the Great Fish River in
the Eastern Cape and the Tugela River in Kwazulu Natal. The Limpopo River starts in the
Highveld in the North West Province and flows northeast to the Indian Ocean. The
Orange/Gariep River flows from the escarpment in Lesotho in a northwest direction, to the
Atlantic Ocean. The Vaal River in Gauteng is a tributary of the Orange/Gariep River.
Activity 5 Look at the physical map and the diagram of the main rivers of South Africa that will be
given to you in class and answer the following questions:
1. Name the longest river in South Africa.
2. Why the coastal rivers so short?
3. Name all the tributaries of the Orange/Gariep River?
4. How do you think the Crocodile River, a tributary of the Limpopo River, got its name?
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How the physical landscape in South Africa affects people’s lifestyles Few people live on high mountains. This is because it is difficult to get up to the top of a
mountain. Soil on the top of mountains is also unsuitable to grow crops. Not many people
live in deserts as it is too hot and there is very little water to grow crops. More people live
in valleys because the soil is good and water is readily available from the rivers. Valleys
are good catchment areas for rivers so, in valleys, people can grow crops, plant trees and
farm animals. Many people live next to warm oceans. The reason for this is that the
climate is comfortable and the rainfall is good for growing crops. Fewer people live next to
cold oceans because the climate is not very comfortable and the rainfall is less. This
means it is difficult to grow crops. In South Africa, most people live in the province of
Gauteng and the cities of Durban, Port Elizabeth and Cape Town.
How human activities change landscapes Mostly, people stay in homes near other people in some sort of settlement. Land is used
for farming and sometimes for mining minerals or drilling for fuels and oils.
People also need land for producing goods in factories and industries. These activities
can be harmful to the land. For all our activities, we use water, transport, electricity or
other power.
Dams, roads and power stations take up a lot of the land. In order to build places to live or
mines or factories and all other things that humans need, people have had to change the
landscape. As cities and towns become bigger, factories and homes are built very close to
rivers and the ocean.
Climate change has resulted in more storms and this causes rivers to flood and waves to
crash into the coast. Over the last few years, there have been many reports of buildings
and roads being washed away and people killed near rivers and oceans. Houses built too
close to oceans are being destroyed and man–made sea walls get broken down in storms
or tsunamis.
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How a dam changes the physical environment Dams are important to people because they store water for us to use for many things.
There are many things to consider before a dam can be built. Sometimes the negative
results of building a dam are not identified and this can have disastrous effects on the land
around the dam or on the success of the dam.
We need to think about the following things before building a dam:
• Is the dam wide and deep enough?
• Does the river system have enough water to keep the dam full?
• How many people live in the valley?
• Do they really need the river water that the dam will catch?
• What will happen to the animals and plants if a dam is built?
• What happens if the dam is damaged in a flood?
The Katse dam is built in Lesotho. Water from the dam is used in South Africa. The dam
wall is 185m high. The catchment area is 32 km long.
How roads change the physical environment Roads are built to link towns and cities. Some roads are built to bring resources to the
towns. Roads follow the shape of the landscape. This means they will go along the side
of a cliff or they will follow the shape of a coastline. Roads cannot be too steep. When
roads have to cross mountains, they are cut into mountains or tunnels are made through
the mountains. When roads have to cross a river, bridges need to be built.
Sometimes, cutting into a mountain loosens the earth and rock. Thus, when it rains,
landslides are caused. Roads sometimes block off the natural flow of water. The flowing
rain water can break down the road. Engineers have to design roads carefully to prevent
this as much as possible.
Highways and fly-overs are built so that traffic can flow easily in towns and cities. More
roads and bigger roads can result in an increase in the number of cars on the roads. In
South Africa, the government is trying to reduce the traffic on roads by encouraging people
to use public transport. It is cheaper and much healthier for people to use public transport,
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as there is a lot of pollution from exhaust fumes of cars and trucks. This pollution affects
the environment, causing damage to people, plants and animals.
